Tile-mold.



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P. MOM. SAWYER.

TILE MOLD'.

APPLICATION FILED MARA. 190s.

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Specification of Letters Patent.

Patented Aug. 2s, 190e.

Application filed March l, 1906. Serial No. 303.688.

T0 all whom, t may concern.-

l Be it known that I, FRANK MCM. SAWYER, a citizen of the United States,residing at Charlotte, in the county of Mecklenbunlr and State of NorthCarolina, have invente certain new and useful Improvements iii Tile-Molds; and I do declare the following to be a full, clear, and exactdescription of the invention, such as will enable others skilled in theart to which it appertains to make and use the same.

M invention relates to improvements in inol s for molding roofing-tilesand other like articles.

One object of the invention is to provide a mold of this character whichwill be composed of a comparatively few pieces or parts, adapted to bereadily assembled and separated and in which a large number of tiles orthe like may be simultaneously molded.

Anther object of the invention is to provide a combined spacer andagitator for molds of this character which will be of simple, durable,and comparatively inexpensive construction and well adapted for thepurpose intended.

A further object of the invention is to improve and simplify theconstruction of devices of this character, and thereby render the samemore efficient and durable and less expensive.

With the above and other objects in view the invention consists of'certain novel features of construction, combination, and arrangement ofparts, as will be hereinafter more fully described and claimed.

In the accompanying drawings, Figure 1 is a perspective view of atile-mold constructed in accordance with my invention. Fig. 2 is avertical lon itudinal sectional view through the same. ig. 3 is a detailhorizontal sectional view taken on the plane indicated by the line 3 3in Fig. 2. Fig. 4 is a perspective view of a portion of one of thecombined spacing and agitating devices for use in the mold, and Figs. 5and 6 are detail views showing modified forms of spacing-strips ordevices for the inold-pieces.

In the practice of my invention I employ a number of transversemoldpieces 1, which are preferably, but not necessarily, formed ofsheets of metal bent at suitable points to form mold-sections 2, whichshape the sides of the molded tile or other article. As

shown, these side mold-sections 2 are curved longitudinally; but theymay be of any other shape or form, accordin to the nature of thearticles to be mol ed. Any number of the mold-sections 2 may be formedin each transverse mold-piece, and between each one and at the outeredges of the two outer sections are flat portions or flanges 3, whichare formed with apertures 4 to receive clamping devices. The transverseiiiold-pieces 1 are assembled side by side, as shown in the drawings,and are s aced apart by means of strips or blocks 5, wliich are arrangedbetween the flat portions or faces 3 and upon the outer faces of the twoouter or end pieces 1. These spacing blocks or strips 5 are shaped tofit the transverse mold-pieces, as clearly shown in Fig. 3 of thedrawings, and they are formed 6, which aline with the openings 4 in thepieces 1, so as to receive clamping bolts or rods 7. Two 'of theclamping-rods 5 extend through each of the vertical rows of blocks orstrips 5 to securely unite the latter and cause them to serve as thelongitudinal pieces or portions of the mold. As sliown, tlie clamping-rods 7 have heads S at one end and winged nuts 9 upon their oppositescrew-threaded ends; but it will be understood thatany other suitableform of clamping devices may be substituted for these rods or bolts. Theblocks or strips 5, it will be observed, not only space the transversemold-pieces 1 apart, but also close the ends of the mold-cavities 10,which are formed between the side moldsections 2, the edges of theblocks or strips 5 being suitably shaped for this purpose. In order toform holes or openings in the molded tiles, so that they may be nailedin position upon a roof or the like, I preferably form in the sidemold-sections 2 alining openings 1 1, through which a rod or the likemay be passed.

In order to space the side mold-sections 2 apart to prevent them fromspringing while being filled and in order to agitate the plasticmaterial after it has been placed in the mold and before it hardens toremove air-bubbles from the material, I provide a combined s acer andagitator 12. The latter, as clearly shown in Fig. 4 of the drawings,consists of a longitudinally-extending bar 13, from which depend aplurality of arms 14, which enter the mold-cavities 10 and space thesections 2 apart, the Width of the arms 14 being the transverse openingsA IOO same astliat or tne mold-cavities. The arms 14, which may have4their central portions twisted, as shown, are of less length than themold-sections 2, and upon their lower ends are formed or securedagitator-heads l5, which are similar in shape to the shape of thecross-section of one of the mold-cavities 10. As shown, theagitator-heads 15 consist of longitudinally-curved metal strips orplates which are riveted, as at 16, larly-bent lower ends of the arms14, the latter having'their upper ends similarly riveted or secured, asat 17, to the connecting-bar 13. The heads 15 are formed withperforations or openings 1S, so that the plastic material in.

the mo d-cavities 10 may pass therethrough and will be agitated as the sacer and agitator is removed from the mo d. As shown, one of thesespacers and agitators is provided for each longitudinal row ofmold-cavities; but, if desired, their longitudinal bars may be readilyconnected together. Instead of employing the spacing strips or blocks 5between the mold-pieces 1 for the purpose of spacing themapart andclosing the ends of the mold-cavities between the curved side sections 2I may employ the construction shown in Figs. 5 and 6 of the drawings forthis purpose. As shown in Fig. 5, a channel metal strip 20 has itscentral portion secured to or removably engaged with the fiattenedportion 3 of one of the moldieces 1, and its sides are bent angularly toorm flanges 21, which close the ends of the mold-cavities, as shown. Itwill be understood that this channel metal strip 20 takes the place ofone of the wooden blocks or strips 5 and that it may be either fixedupon or separate from the portion 3 of one of the mold-pieces.

In Fig. 6 of the drawings the mold-pieces are composed of separatecurved side moldsections 22, which are united by the channel metalstrips 23 and which have their ends bent inwardly, as shown at 24, toclose the ends of the mold-cavities. The channel metal strips 23 havetheir central portions apertured to receive the clamping-bolts 7, andtheir longitudinal edges are bent angularly and secured to themold-sections 22, as clearly shown in the drawings.

The operation-of the invention is as follows: The transverse mold-pieces1 are assembled side by side with the s acing blocks or strips betweenthem, and t e clampingrods 7 are then passed through the alining openins 4 and 7 to rigidly unite the parts of the mo d. The spacers andagitators are then inserted in the mold-cavities 1i0, as clearly shownin Figs. 1 and 2 of the drawings, so that their longitudinal bars 13rest upon the upper edges of the mold-pieces 1. The plastic materialfrom which the tiles or other articles are to be formed is then pouredinto the mold-cavities, and before the same harup on the angudens thespacers and agitators are drawn upwardly out of the mold. By having thespacing-arms 14 of the device 12 between the mold-sections 2 while thelatter are being filled. it will be seen that they will be preventedfrom springing by reason of the weight or pressure on one side beinggreater than that on the other, and the molded tiles will hence all beof equal thickness. The upward movement of the agitator-heads 15 throughthe mold-cavities 10 agitates the plastic material therein and removesair-bubbles and the like, which would otherwise form defects in themolded tile. By making the mold of transverse pieces, each of whichconsists of a plurality of mold-sections, and by providing the spacingstrips o1` blocks between the transverse pieces it will be Seen that themold will be composed of but comparatively few simple parts, which maybe quickly and easily assembled and disconnected and between which alarge number of mold-ca'vities will be formed.

From the foregoing description, taken in connection with theaccompanying drawings, the construction, operation, and advantages ofthe invention will be readily understood without requiring a moreextended explanation.

Various changes in the form, proportion, and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention as defined by theappended claims.

Having thus described my invention, what I claim as new, -and desire tosecure by Letters Patent, is

1. A mold of the class described comprising a plurality of mold-pieces,spacing-pieces between the mold-pieces coacting therewith to formmold-spaces and also forming the side edges of the molded articles, saidmoldpieces and spacing-pieces having alining openings, and clampingbolts or rods extending through the said openings and detachablysecuring said mold-pieces and spacingpieces. together.

2. In combination with a mold having a plurality of mold-cavities, aspacer and agitato-r comprising a connecting-bar, arms dependingtherefrom to enter the mold-cavities, and agitating devices on saidarms.

3. The combination with a mold -having a plurality of mold-cavities, ofa spacer and agitator comprising a connecting-bar, depending arms uponthc latter to enter said mold-cavities and space the walls of the latterapart, and agitator-heads upon said arms.

4. A combined spacer and agitator for molds of the character describedcomprising a connecting-bar, depending spacing-arms thereon, andagitator-heads upon said arms.

5. A device of the character described.

IOO

IIO

comprising a connecting-bar, depending arms In testimony whereof I havehereunto set thereon, and agitator-heads upon said arms. my hand inpresence of two subscribing wt- Io 6. A device of the characterdescribed nesses.

comprising a bar, arms secured at their up- 5 per ends to said bar andhaving their lower ends bent angularly, and apertured agitator-Witnesses: heads secured upon the bent lower ends o JAMES E. REILLEY,said arms, substantially as described. EDGAR K. YOUNG.

FRANK MCM. SAVVYER.

